03311+2744 STFA  7AB

 
 
03h 31m 03.47s +27 43' 53.6" P.A. 234 sep 44.1 mag 7.41,7.81 Sp B9 dist. 120.05 pc (391.6 l.y.)
 
 
Coord 2000
03311+2744
Discov num
STFA  7
Comp
AB
Coord arcsec 2000
03 31 03.47 +27 43 53.6
Date first
1836
Date last
2016
Obs
52
Pa first
233
Pa last
234
P.A. Now (θ)
234°
Sep first
44.0
Sep last
44.1
Sep. Now (ρ)
44.1"
Mag pri
7.41
Mag sec
7.81
delta mag (ΔM)
0.4
Spectral class
B9 (blue-white)
Pri motion ra
+029
Sec motion ra
+029
Pri motion dec
-028
Sec motion dec
-028
Notes
N Z V (See Notes, Parallax indicates components are physical, Proper motion indicates physical)
This double is physical.
 
 
03311+2744 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 75964 03311+2744 STFA 7 AB 1836 2016 52 234 44.1 7.41 7.81 0.40 <===
Show 75962 03311+2744 SMR 60 BC 1997 2015 6 0 12.2 7.81 13.00 5.19
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
233.9
Precise sep
44.12
Constellation
Taurus
SAO
75964
HIP
16386
Tycho2
1806-00170-1
HD
21700
BD
BD+27 514
Distance
120.05
Distance ly
391.6
last precise pa
233.9
last precise sep
44.12
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
03311+2744 STFA 7 AB 2013 49 233 44.1 7.41 7.81 B9 NZDV 033103.47+274353.6
03311+2744 STFA 7 AB 2014 50 234 44.0 7.41 7.81 B9 NZDV 033103.47+274353.6
03311+2744 STFA 7 AB 2015 51 234 44.0 7.41 7.81 B9 NZ V 033103.47+274353.6
03311+2744 STFA 7 AB 2016 52 234 44.1 7.41 7.81 B9 NZ V 033103.47+274353.6

If you need more information about this double, apply for a data request form to the WDS.